Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Nicholas Carter
Christopher Anvil
Nicholas Carter and Bertram Lebhar
Ezra A. Cook
Alexander Blade
Anonymous
Nicholas Carter and Roland Ashford Phillips
Talbot Baines Reed
Various
Horace Herbert Smith
Austin Loomer Rand
Nicholas Carter and Alden F. Bradshaw
Nicholas Carter and C. C. Waddell
Martha Finley
Olive Harper and Hal Reid
Sir E. Ray Lankester
Randall Garrett and Robert Silverberg
Samuel Muller
Johan Winkler
Edmond Hamilton
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.